The following languages are listed as unclassified by the Ethnologue (17th edition), though in their descriptions some are identified with an established family, or have been retired as spurious. Since the 15th edition, several other unclassified languages were found to be related to known languages once better data was collected, and some, such as Amikoana and Miarrã, were found to be spurious and their ISO codes were retired. (See spurious languages.) Languages which became extinct before 1950 are the purview of Linguist List and are being gradually removed from Ethnologue; they are listed as an addendum to this page.
Africa
- Bung language (Cameroon)
- Gail language (a cant of South Africa)
- Imeraguen language (Mauritania, Hassaniya-Soninke mix?)
- Kara language (Central African Republic, Central Sudanic)
- Kujarge language (Chad, Afroasiatic)
- Laal language (Chad, isolate?)
- Leti language (Cameroon)
- Lufu language (Nigeria, Southern Jukunoid)
- Cameroonian Luo language (Cameroon; not to be confused with the better-known Luo language)
- Nigerian Mawa language (Nigeria; not to be confused with the Chadian Mawa language)
- Rer Bare language (Ethiopia, unattested)
- Shabo language (Ethiopia)
- Weyto language (Ethiopia, unattested)
Yeni language(Cameroon, Mambiloid)
Americas
North
- Haitian Vodoun Culture language (Haiti)
Mangue language (Nicaragua)(Oto-Manguean)
South
Asia
Bhatola language btl(does not exist, requesting ISO code be retired[1])Enggano language (Indonesia)(Austronesian)- Majhwar language (India, possible dialect of Asuri [Mundari])
Malakhel language (Afghanistan)(code retired)Ná-Meo language(Vietnam, possibly from Guangxi) (ethnically Hmong, said to be East Hmongic)Warduji language wrd(Sanglechi)- Waxianghua language (China, Hunanese–Miao mix?)
Bhatola is listed as unclassifiable (due to a lack of data) by Glottolog.[1]
Europe
All cants:
- Polari (United Kingdom)
- Quinqui (Spain)
- Traveller Scottish (United Kingdom)
Oceania
- Doso language (Papua New Guinea)
- Kembra language (Irian Jaya, Indonesia)
- Kimki language (Irian Jaya)
- Lepki language (Irian Jaya)
- Molof language (Irian Jaya)
- Murkim language (Irian Jaya)
- Namla language (Irian Jaya)
- Tofanma language (Irian Jaya)
- Usku language (Irian Jaya)
- Yetfa language (Irian Jaya)
Yitha Yitha language(Australia) (Ethnologue has a Ngarinyeric-Yithayithic branch of Pama-Nyungan that Yitha Yitha is traditionally classified in)
Languages maintained by Linguist List
These languages became extinct before 1950 and their ISO codes are not, or are no longer, maintained by SIL. Maintenance of additional languages extinct before 1950 is being gradually shifted from SIL to Linguist List.
- Africa
- America, North
- Adai language
- Aranama–Tamique language
- Beothuk language
- Cayuse language
- Solano language
- Timucua language
- America, South
- Asia
- Hunnic language
- Indus Valley language
- Kaskean language
- Anatolia
- Haတttian language
- Mysian language
- Korea
- Kara language (Korea)
- Koguryo language
- Paekche language (incl. Puyo-Paekche)
- Puyo language
- Puyo-Paekche language
- Yemaek language
- Europe
- Camunic language
- Eteocretan language
- Eteocypriot language
- Iberian language
- Ligurian (ancient language)
- Linear A language (= Minoan)
- Minoan language
- North Picene language
- Pictish language
- Raetic language
- Sicanian language
- Sorothaptic language
- Tartessian language
- Oceania
- Tambora language
- Tasmanian languages